package net.zjitc.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import lombok.extern.slf4j.Slf4j;
import net.zjitc.common.R;
import net.zjitc.entity.Category;
import net.zjitc.service.CategoryService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@RestController
@RequestMapping("/category")
@Slf4j
public class CategoryController {
    @Autowired
    private CategoryService categoryService;

    @PostMapping
    public R<String> add(@RequestBody Category category) {
        log.info("添加一个分类" + category.toString());
        categoryService.save(category);
        return R.success("添加分类成功");
    }

    /**
     * 分页查询
     *
     * @param page
     * @param pageSize
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize) {
        //分页构造器
        Page<Category> pageInfo = new Page<>(page, pageSize);
        //条件构造器
        LambdaQueryWrapper<Category> queryWrapper = new LambdaQueryWrapper<>();
        //添加排序条件，根据sort进行排序
        queryWrapper.orderByAsc(Category::getSort);

        //分页查询
        categoryService.page(pageInfo, queryWrapper);
        return R.success(pageInfo);
    }

    /**
     * 根据id删除分类
     *
     * @param id
     * @return
     */
    @DeleteMapping
    public R<String> delete(Long id) {
        log.info("删除分类，id为：{}", id);

        //categoryService.removeById(id);
        categoryService.remove(id);
        return R.success("分类信息删除成功");
    }

    @PutMapping
    public R<String> update(@RequestBody Category category) {
        log.info("接受到更新请求" + category);
        categoryService.updateById(category);
        return R.success("更新成功");
    }

    @GetMapping("/list")
    public R<List<Category>> list(Integer type) {
        log.info("请求分类信息" + type);
        //查询分类信息
        //能够得到list，里面有很多Category分类
        //添加一个约束条件wrapper完成
        LambdaQueryWrapper<Category> categoryLambdaQueryWrapper = new LambdaQueryWrapper<>();
        categoryLambdaQueryWrapper.eq(type != null, Category::getType, type);
        List<Category> list = categoryService.list(categoryLambdaQueryWrapper);
        return R.success(list);
    }
}
